[Git][freetype/freetype][gsoc-anurag-2023] improve simd

[Anurag Thakur (@AdbhutDev)]

Anurag Thakur pushed to branch gsoc-anurag-2023 at FreeType / FreeType

Commits:

• 0e4a081e
  by Anurag Thakur at 2023-10-08T19:34:11+05:30

  improve simd
  

2 changed files:

• src/base/ftobjs.c
• src/dense/ftdense.c

Changes:

src/base/ftobjs.c

---

...	...	@@ -3154,7 +3154,7 @@ int conic_to2(FT_GlyphSlot* slot, FT_Vector *control, FT_Vector *from, FT_Vector
3154	3154	face->garray = (FT_GlyphSlot*)malloc(
3155	3155	face->driver->clazz->slot_object_size * face->num_glyphs );
3156	3156	//error = FT_Set_Char_Size( face, 0, 160 * 64, 300, 300 );
3157		- error = FT_Set_Pixel_Sizes( face, 0, 100);
	3157	+ error = FT_Set_Pixel_Sizes( face, 0, 200);
3158	3158	// int glyph_index = FT_Get_Char_Index( face, 'A' );
3159	3159	// error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_HINTING );
3160	3160

src/dense/ftdense.c

---

...	...	@@ -467,6 +467,7 @@ dense_render_glyph( dense_worker* worker, const FT_Bitmap* target, FT_PreLine pl
467	467
468	468	__m128i offset = _mm_setzero_si128();
469	469	__m128i nzero = _mm_castps_si128(_mm_set1_ps(-0.0));
	470	+
470	471
471	472	for (int i = 0; i < worker->m_h*worker->m_w; i += 4)
472	473	{
...	...	@@ -482,13 +483,15 @@ dense_render_glyph( dense_worker* worker, const FT_Bitmap* target, FT_PreLine pl
482	483	x = _mm_add_epi32( x, offset );
483	484
484	485	__m128i y = _mm_srli_epi32( _mm_abs_epi32( x) , 4 );
485		- y = _mm_packs_epi32(y, nzero);
486		- y = _mm_packus_epi16(y, nzero);
	486	+ y = _mm_packus_epi16(_mm_packs_epi32(y, nzero), nzero);
487	487
488	488	// int* ptr = (int*)&dest[i];
489	489	_mm_storeu_si32(&dest[i], y);
490	490
491	491	offset = _mm_shuffle_epi32(x,_MM_SHUFFLE( 3, 3, 3, 3 ) );
	492	+
	493	+
	494	+
492	495	}
493	496
494	497	#elif FT_NEON

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